Does MTS2000 Toolproofing follow Codeplug or reside in radio

[Leadenwah]

My feeling is that Toolproofing is part of the firmware of the MTS-2000
which resides in the radio, not the codeplug. Is this correct ?

For example: You read a late model MTS2000 codeplug from a Toolproofed
radio and then load it into an older MTS2000 which is not Toolproofed.
Feature disagreements aside, would this Fail Code cloned radio?

[HLA]

it's in the firmware

[Leadenwah]

That answers the question.

Thanks